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多项选择题

下列哪些属于音的性质？ A.
音高 B.
音强 C.
音值 D.
音色

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热门试题

单项选择题All of the following sentences can be used as a good topic sentence except ______.

A．The campus of London University is beautiful.
B．The faculty of London University is qualified.
C．Some of the students of London University are very hardworking.
D．The facilities of London University are new.

单项选择题经济增长是指一国潜在的国内生产总值或国民产出的增加。（）

A．对
B．错